01
ASTM A276 / A276M
Stainless steel bars and shapes
Standard specification for stainless steel bars and shapes.
Stainless Steel — Industrial Product
Stainless Steel Bar 316
Austenitic 316 stainless steel bar supplied to ASTM A276 with molybdenum for chloride-rich chemical and marine applications.
Indicative priceUSD 2,400 - 3,200 / MT
Lead time10 - 20 working days
01
Overview
Stainless Steel Bar 316 combines austenitic stainless steel with 16–18% chromium, 10–14% nickel and 2–3% molybdenum for reliable chloride resistance and consistent dimensional control. The molybdenum addition delivers enhanced pitting and crevice corrosion performance in chloride-rich environments, making the bar suited to chemical processing components, marine hardware, oil and gas fittings, pharmaceutical equipment and pump shafts. Supplied to ASTM A276 with mill test certification per EN 10204 3.1, it supports global procurement for harsh-service industrial projects.
Key Characteristics
- 01 Corrosion Resistance Provides improved resistance to corrosive industrial environments.
- 02 Pitting Resistance Provides improved resistance to localized pitting corrosion.
- 03 Seawater Resistance Provides resistance to seawater and chloride-bearing environments.
- 04 Good Formability Supports bending, forming and other fabrication processes with suitable processing conditions.
- 05 High Temperature Capability Suitable for elevated-temperature service within the applicable material limits.
- 06 Standard Compliance Manufactured and supplied in accordance with the specified material and product standards.
Typical Applications
- Chemical Processing Process piping, transfer systems and equipment for corrosive and high-purity media.
- Petrochemical Piping, process systems and equipment for refining, petrochemical production and hydrocarbon processing.
- Oil & Gas Service Process piping, flow lines and utility systems across onshore and offshore upstream, midstream and downstream operations.
- Marine Engineering Piping, structural components and equipment exposed to chloride-containing marine environments.
- Pharmaceutical Hygienic process systems, vessels and manufacturing equipment for pharmaceutical production.
- Machinery & Equipment Shafts, gears, housings, frames and other components for industrial machinery and OEM equipment.
- Stamping & Machining Metal forming and machining for stamping, deep drawing, CNC machining and forging operations.
02
Specifications
Numbers in this section correspond to the applicable product standard, formatted for direct use in enquiry and approval documents.
Product specification
- Material
- Austenitic stainless steel
- Grade
- 316 / 1.4401 / SUS316
- UNS designation
- S31600
- Product form
- Bar / rod
- Manufacturing method
- Hot rolled / cold drawn
- Surface / condition
- Mill finish; pickled / polished on request
- Cross-section
- Solid round section (standard); square/hex on request
Supply specifications
- Diameter
- 6 - 300 mm (round); custom sections on request
- Length
- 3 - 12 m; cut-to-length on request
- Tolerance
- According to ASTM A484 / EN 10060
- Surface finish
- Mill finish; turned / polished on request
- Straightness
- <= 2 mm/m
- Marking
- Standard mill marking; customer marking on request
Final supply is confirmed against the project drawing, purchase agreement and the mill test certificate.
Chemical composition
ElementRequirement
C <= 0.08 %
Si <= 0.75 %
Mn <= 2.00 %
P <= 0.045 %
S <= 0.030 %
Cr 16.0 - 18.0 %
Ni 10.0 - 14.0 %
Mo 2.0 - 3.0 %
N <= 0.10 %
Fe Balance
Reference: ASTM A276 316.
Mechanical properties
PropertyRequirement
Tensile strength >= 515 MPa
Yield strength (0.2% offset) >= 205 MPa
Elongation in 50 mm >= 40 %
Hardness <= 217 HB / <= 95 HRB
Reference: ASTM A276 316 at room temperature.
Physical properties
PropertyTypical Value
Density 8.0 g/cm³
Elastic modulus 193 GPa
Thermal conductivity 16.3 W/m·K at 100°C
Electrical resistivity 0.74 μΩ·m
Specific heat 500 J/kg·K
Melting range 1,400 - 1,450 °C
Thermal expansion 15.9 x 10⁻⁶ /°C
Reference: Typical material values, 316.
Reference framework
Standards & documentation
The applicable product, dimensional and inspection standards should be confirmed together in the purchase specification.
02
EN 10088-3
Stainless steel wire rod and drawn wire
European reference for stainless steel wire rod and drawn wire (also covers drawn bar).
03
EN 10058
Hot-rolled flat steel bars
European reference for hot-rolled flat steel bars for general purposes.
04
JIS G4303
Stainless steel bars
Japanese reference for stainless steel bars for general, machine and structural use.
05
GB/T 1220
Stainless steel bars
Chinese reference for stainless steel bars.
06
EN 10204
Inspection documents
Defines inspection document types such as 3.1 and 3.2 for metallic product delivery.
03
Capability
From custom dimensions and precision sizing to heat treatment, surface finishing and product-specific processing, Wayland coordinates supply solutions tailored to your requirements.
Cutting
Cut-to-length and custom cutting according to order requirements.
Custom Dimensions
Non-standard dimensions, tolerances and dimensional combinations subject to product and mill capability.
Precision Sizing
Precision sizing and dimensional control for tighter tolerance requirements.
Cold Working
Cold drawing, cold sizing and other cold-working processes where required.
Heat Treatment
Heat treatment according to material, specification and applicable standard.
Surface Finishing
Surface treatment and finishing according to product, specification and application requirements.
Machining
Turning, drilling, milling and other machining operations where required.
Forming
Bending, forming and other shape modification according to drawings or order requirements.
Customization
Custom dimensions, lengths, surface conditions, end preparations and inspection requirements can be supplied according to project specifications. Final capability is confirmed per enquiry based on grade, size range and applicable standard.
04
Quality
Inspection and documentation procedures are coordinated to meet the requirements of the applicable product standard and the project specification.
- Dimensional inspection Geometry, dimensions and tolerances against the applicable standard
- Visual and surface inspection Surface condition, marking and overall appearance
Documents
- Inspection Report
- Chemical analysis Per heat, against the applicable standard
- Mechanical testing Tensile, yield, elongation and hardness
- Non-destructive testing UT, eddy-current, hydrostatic or other NDT as applicable
- Positive material identification PMI for alloy verification when required
Documents
- Mill Test Certificate (MTC)
- Heat number traceability Heat number carried through MTC and product marking
- Third-party inspection coordination SGS / BV / TÜV on request
Documents
- Third-Party Inspection Report
- EN 10204 documentation 3.1 MTC standard; 3.2 on request
Documents
- EN 10204 3.1 Mill Test Certificate
- EN 10204 3.2 Inspection Certificate
- Certificate of Origin
05
Selection
A well-prepared specification is the most efficient defence against clarification cycles.
- 01 Select material & grade
Choose the material grade according to service conditions, performance requirements and applicable standards.
- 02 Define size & supply condition
Specify the required dimensions, surface condition, heat-treatment condition and delivery requirements.
- 03 Confirm standard & requirements
State the applicable product standard, dimensional standard and governing project specification.
- 04 Define inspection & documentation
Confirm inspection, testing, certification and documentation requirements before order placement.
Example procurement specification
A complete specification suitable for enquiry, covering product, technical requirements, certification and delivery terms.
- Product
- Stainless Steel Bar 316
- Grade
- 316
- Standard
- ASTM A276
- Dimensions
- Ø 16 mm × Length 6000 mm (2B)
- Condition
- Solution Annealed & Pickled; Smooth Surface
- Certification
- EN 10204 3.1 Mill Test Certificate
- Quantity
- 20 Metric Tons
- Packaging
- Seaworthy Export Packing
- Incoterm
- CIF Hamburg
06
Logistics
From mill dispatch to destination port, each stage is coordinated with the nominated forwarder and documented against the purchase specification.
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Packaging
Export-suitable packaging with surface and edge protection.
Bundled, wrapped or crated according to product form and transport mode. Outer surface protected with weather-resistant material; ends and edges shielded against transit damage.
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Loading
FCL container for standard sizes; break bulk for oversized cargo.
Container loading via nominated forwarder. LCL and dimensions outside container allowance coordinated against the mill dispatch schedule.
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Documentation
Commercial invoice, packing list and certificate of origin.
Mill documentation travels with the shipment. EN 10204 3.1 / 3.2 certificates and third-party inspection reports provided as per purchase specification.
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Shipment
Sea freight as standard; alternative routes on request.
FCL / LCL container shipment or break bulk for oversized dimensions. Logistics coordinated through the nominated forwarder.
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Delivery
FOB · CFR · CIF · FCA · EXW arrangements available.
Incoterm 2020. Port of loading: Shanghai / Ningbo / Shenzhen. Final destination and terms confirmed per enquiry.
07
FAQ
Most enquiries reduce to a small set of recurring technical questions.
01 What is 316 stainless bar?
316 stainless bar (1.4401 / SUS316) is an austenitic grade with 2-3% molybdenum for improved resistance to chloride pitting and crevice corrosion.
02 When should 316 bar be specified over 304?
316 is preferred for marine, coastal, chemical processing, pharmaceutical and chloride-rich service.
03 Is 316 bar suitable for food contact?
Yes. 316 bar is widely used for food processing, brewing, dairy and pharmaceutical equipment.
04 Can 316 bar be supplied as low-carbon 316L?
Yes. 316L (1.4404 / SUS316L) with carbon ≤ 0.03% is available for welded applications requiring maximum intergranular corrosion resistance.
05 What is the maximum service temperature of 316 bar?
Continuous service up to 925 °C is acceptable. Sustained 425 - 860 °C exposure should be avoided to prevent carbide precipitation.